Mysterious “hypervelocity stars” observed fleeing the galaxy
Astronomers have discovered dozens of solitary stars that are moving fast enough to escape the gravitational grasp of the Milky…
Dark matter not so dark; may be peppered with rogue stars
Astronomers have suggested that the dark matter halos that envelop entire galaxies may not be completely dark after all, and…
New blow to dark matter theory
A study of the motions of stars in the Milky Way has found no evidence for the existence of dark…
“Fleeing galaxies” tracked deeper into universe
Led by Alexander Kashlinsky at NASA’s Goddard Space Flight Center, a new study of distant galaxy clusters mysteriously streaming at…
Tantalizing hint of dark matter’s existence
Swiss astronomer Fritz Zwicky first suggested that a distant cluster of galaxies would fall apart were it not for the…
Modified Newtonian dynamic could do away with dark matter
As modern cosmology comes to rely more and more on “dark matter” to explain otherwise inexplicable observations, there continues to…
Orphan Black Hole Puzzles Astronomers
Quasars are the brightest objects in the Universe, spewing out enormous amounts of energy making them visible across vast distances.…